Features:

• 6 adjustable levels of correction
• New beep only training mode
• Can be used with a unlimited number of pets, each wearing a collar
• Protection against false signals, Only the PetSafe Wireless Instant Dog Fence Transmitter can activate this receiver. Other brands' receivers can be activated by Televisions, cordless phones, garage door openers, etc. We use filters and coded signals to prevent this. Don't trust your pet's safety to anything but a PetSafe™ Containment System
• Receiver Fail-Safe if your pet leaves the correction zone, the receiver will shut down after 25 seconds to prevent over correction
• In case of a Power Outage the System Turns Off the Collar
• Waterproof receiver
• Low battery indicator light
• Lightweight 2.5 ounce receiver that's only 2 1/4"W x 1 5/8" D x 1" H